docs: def create_session(self, ticket, payload=None, expires=None):
          '''
          Create a session record from a service ticket.
          '''
          assert isinstance(self.session_storage_adapter, CASSessionAdapter)
          logging.debug('[CAS] Creating session for ticket {}'.format(ticket))
          self.session_storage_adapter.create(
              ticket,
              payload=payload,
              expires=expires,
              )